What is this card worth

Izzet Signet FRC FRC 58 $0.27 Commander deck Izzet Signet AA1 AA1 8 No price yet Izzet Signet TDC 320 $0.44 Commander deck Izzet Signet BLC 278 $0.39 Commander deck Izzet Signet OTC 259 $1 Commander deck Izzet Signet CLU 224 $0.39 Izzet Signet RVR 261 $0.65 - 1.14 Izzet Signet LCC 306 $0.41 Commander deck Izzet Signet CMM 957 $0.80 Izzet Signet MOC 362 $0.62 Commander deck Izzet Signet CLB 863 $0.59 Izzet Signet NCC 369 $1 Commander deck Izzet Signet PLST MM3-223 $3 The List Izzet Signet SLD 293 $20 - 30 Retro frame Izzet Signet C21 247 $0.53 Commander deck Izzet Signet C20 243 $0.45 Commander deck Izzet Signet GK1 46 $0.52 Izzet Signet C18 207 $0.52 Commander deck Izzet Signet PRM PRM 62387 No price yet Izzet Signet MM3 223 $0.53 - 1.61 Izzet Signet C15 256 $0.65 Commander deck Izzet Signet DDJ 17 $0.54 Izzet Signet CMD 252 $0.99 Commander deck Izzet Signet GPT 152 $0.78 - 17.11